One是一个
英文单词，名词，
代词，
限定词，形容词，
数词。名词时翻译为“一；
一美元纸币；(One) （印、马、美）温（人名）”。做代词时翻译为“一个人；任何人，人们（表泛指）；那个人；（特指的）那种人”。做限定词时翻译为“一个（强调某人或某事）；一个（用于比较相似的人或物）；某个（用于不认识的人的名字前）”。做形容词时翻译为“唯一的；一的”。作数词时翻译为“一；一个；一岁；一点钟”。它的复数形式为ones。
单词发音
英 [wʌn] 美 [wʌn]
形容词
1. 一的；一个的；一个人的
2. 惟一的，单独一个的
3. 某一的
4. 一致的，同一的
5. 完整的，一体的
6. 第一的
7. [表示与其它的对照]这一个的
8. [代替 a 或 an，表示强调][口语]一个确实…的；一个非常…的
名词
1. (基数的)1
2. 表示一的符号(如 1，Ⅰ等)
3. 一个人；一件东西；一件事
4. 一体
5. (东西的)一个单位
6. [美国英语]1美元钞票
7. [英国英语]1英镑钞票
8. 1点钟
9. 1岁
10. 1号房间
11. (衣服、鞋等的)1号尺码
12. 一杯酒
13. (骰子、多米诺骨牌等的)1点
14. [口语]胆大的人；有趣的人；古怪的人
15. [口语]话；笑话，故事
16. 迷，爱好者
17. [O-]【哲学】(新柏拉图主义的)最终的现实
代词
1. (特指的一类或一群人中的)一人，人
2. (泛指)一个人，任何人
3. (特定某类中的)一件东西
4. 这一个
5. [用于表达意见，使语气显得客观](说话人)自己
6. [主英国英语][用于代替I]我
7. [表示与其他(或它)的对照]这一个人(或东西)
8. 同一个人(或东西)
9. [用于代替上文中的名词或名词短语]
牛津释义
number,det.
1
一
the number 1
Do you want one or two?
你要一个还是两个？
There's only room for one person.
只有一个人的空间。
One more, please!
请再来一个！
a one-bedroomed apartment
I'll see you at one (= one o'clock) .
我一点钟见你。
2
（正式用语或表强调，用在hundred、
thousand等或度量单位之前）一
used in formal language or for emphasis before hundred , thousand , etc., or before a unit of measurement
It cost one hundred and fifty pounds.
那东西花了一百五十英镑。
He lost by less than one second.
他以不到一秒钟的差距输了比赛。
3
（表强调）单独一个，仅仅一个
used for emphasis to mean ‘a single’ or ‘just one’
There's only one thing we can do.
我们能做的只有一件事。
4
（尤指一组中的）一个人，一件事物
a person or thing, especially when they are part of a group
One of my friends lives in Brighton.
我的一个朋友住在布莱顿。
One place I'd really like to visit is Bali.
5
（表强调）唯一的一个，最重要的一个
used for emphasis to mean ‘the only one’ or ‘the most important one’
He's the one person I can trust.
他是我唯一可以信赖的人。
Her one concern was for the health of her baby.
她唯一操心的就是孩子的健康。
It's the one thing I
can't stand about him.
这是我最不能容忍他的一件事。
6
（用于一般地谈论过去或将来的某个时间）
used when you are talking about a time in the past or the future, without actually saying which one
I saw her one afternoon last week.
我在上周的一个下午见到了她。
One day (= at some time in the future) you'll understand.
总有一天你会明白的。
7
同一个
the same
They all went off in one direction.
他们都朝同一个方向走了。
8
(
informal, especiallyNAmE)（代替a或an，表示强调）
used for emphasis instead of a or an
That was one hell of a game!
那一场比赛简直一塌糊涂！
She's one snappy dresser.
她的穿着很入时。
9
（与人名连用，表示说话人不认识的人）某一个
used with a person's name to show that the speaker does not know the person
He worked as an assistant to one Mr Ming.
他给一位明先生当助手。
习语
as one
in agreement; all together
We spoke as one on this matter.
在这个问题上我们口径一致。
(be) at one (with sb/sth)
(formal)完全一致；是…的一部分
to feel that you completely agree with sb/sth, or that you are part of sth
a place where you can feel at one with nature
一个你能感到与大自然融为一体的地方
for one
就是其中之一（表达意见时用以加强语气）
used to emphasize that a particular person does sth and that you believe other people do too
I, for one, would prefer to postpone the meeting.
主张推迟会期的，我就是一个。
get sth in one
立即明白（或猜到）
to understand or guess sth immediately
get one over (on) sb/sth
(informal)占上风；胜过；占优势
to get an advantage over sb/sth
I'm not going to let them get one over on me!
我决不让他们胜过我！
go one better (than sb/sth)
胜人一筹；（比自己过去）做得更好
to do sth better than sb else or than you have done before
同义词：outdo
She did well this year and next year she hopes to go one better.
今年她干得不错，她希望明年更上一层楼。
in one
集于一身（或一体）；多功能；多用途
used to say that sb/sth has different roles, contains different things or is used for different purposes
She's a mother and company director in one.
她既是母亲又是公司董事。
It's a public relations office, a press office and a private office all in one .
那儿既是公关办公室，也是新闻办公室，又是私人办公室：三位一体。
see alsoall-in-one
one after another/the other
一个接一个地；陆续地；络绎不绝地
first one person or thing, and then another, and then another, up to any number or amount
The bills kept coming in, one after another.
账单纷至沓来。
one and all
(old-
fashioned, informal)各位；大家；每个人
everyone
Happy New Year to one and all!
祝各位新年快乐！
one and only
绝无仅有的；唯一的；有名的
used to emphasize that sb is famous
Here he is, the one and only Van Morrison!
他来了，这盖世无双的范∙莫里森！
one and the same
（表示强调）同一个
used for emphasis to mean ‘the same’
I never realized Ruth Rendell and Barbara Vine were one and the same (= the same person using two different names) .
我从未意识到鲁思∙兰德尔和芭芭拉∙瓦因原来是同一个人。
one by one
逐个地；逐一地
separately and in order
I went through the items on the list one by one.
我逐条看了清单上的条目。
one or two
一些；一二
We've had one or two problems─nothing serious.
我们有一些问题，不过没什么大不了的。
one up (on sb)
having an advantage over sb
when you've seen, heard, etc. one, you've seen, heard, etc. them all
(saying)所有的…都大同小异；知其一便知其全部
used to say that all types of the things mentioned are very similar
I don't like science fiction novels much. When you've read one, you've read them all.
我不太喜欢科幻小说。读过一本，就知道其他的内容了。
all in one
多功能；多用途
having two or more uses, functions, etc.
It's a
corkscrew and bottle-opener all in one.
be in a minority of one
(often humorous)是唯一持不同意见者；是唯一投此票者
to be the only person to have a particular opinion or to vote a particular way
back to square one
（因无进展）回到起点，从头再来
a return to the situation you were in at the beginning of a project, task, etc., because you have made no real progress
If this suggestion isn't accepted, we'll be back to square one.
如果这个建议得不到采纳，我们就得从头再来了。
pron.
1
（用来避免重复已提过的或是听者已知的事物的名称）
used to avoid repeating a noun, when you are referring to sb/sth that has already been mentioned, or that the person you are speaking to knows about
I'd like an ice cream. Are you having one, too?
Our car's always breaking down. But we're getting a new one soon.
我们的汽车老出毛病。但我们快要买新的了。
She was wearing her new dress, the red one.
她穿着她的新衣服，那件红的。
My favourite band? Oh, that's a hard one (= a hard question) .
我最喜爱的乐队？哦，这可就难说了。
What made you choose the one rather than the other?
你怎么选了这个而不是那个？
(BrE)How about those ones over there?
你看那边那些怎么样？
2
（用于辨别所谈的人或事）
used when you are identifying the person or thing you are talking about
Our house is the one next to the school.
我家的房子就是学校旁边的那座。
The students who are most successful are usually the ones who come to all the classes.
成绩最好的学生往往是出全勤的那些。
3
~ of
其中的一个人（或事物）
a person or thing belonging to a particular group
It's a present for one of my children.
这是送给我的一个孩子的礼物。
We think of you as one of the family.
我们把你看作家中的一员。
4
~ (to do sth)
（某类人中的）一个
a person of the type mentioned
10 o'clock is too late for the little ones .
十点钟对那些小家伙来说就太晚了。
He ached to be home with his loved ones .
他渴望着回家与亲人团聚。
She was never one to criticize.
她是个从不爱批评人的人。
5
(formal)人们；本人
used to mean ‘people in general’ or ‘I’, when the speaker is referring to himself or herself
One should never criticize if one is not sure of one's facts.
一个人如果对自己掌握的事实没有把握，就绝不该随便批评。
One gets the impression that they disapprove.
本人的印象是，他们不赞成。
【帮助说明】 This use of one is very formal and now sounds old-fashioned. It is much more usual to use you for ‘people in general’ and I when you are talking about yourself. one 的这一用法颇为正式，现在听起来过时了。现在更常用you指一般人，用I指自己。
6
a one
(old-fashioned, especiallyBrE)（举止）有趣的人，令人惊奇的人
a person whose behaviour is amusing or surprising
Oh, you are a one!
哈！你这个活宝！
7
the ~ about sth
玩笑；笑话
Have you heard the one about the Englishman, the Irishman and the Scotsman?
你听没听过那个关于英格兰人、
爱尔兰人和苏格兰人的笑话？
习语
be (a) one for (doing)
sth乐于（或长于）做某事的人
to be a person who enjoys sth, or who does sth often or well
I've never been a great one for fish and chips.
柯林斯释义
7PRON（用于代替名词，指代某类明确的人或事物） You can useoneoronesinstead of a noun when it is clear what type of thing or person you are referring to and you are describing them or giving more information about them.They are selling their house to move to a smaller one...他们正打算卖掉房子，然后搬到一个小一点的住处。
8PRON（泛指）人们 You useonesto refer to people in general.We are the only ones who know.我们是唯一的知情者。
9PRON（用于代替名词词组，表示刚提到过的事物） You can useoneinstead of a noun group when you have just mentioned something and you want to describe it or give more information about it.His response is one of anger and frustration...他的回答充满了愤怒和懊丧。
10DET（特指一群人或事物中的）一人，一个 You can useonewhen you have been talking or writing about a group of people or things and you want to say something about a particular member of the group.'A college degree isn't enough', said one honors student.“光有一个大学学位还不够，”一位优等生说。Oneis also a pronoun.
11QUANT（同类事物或人中）（最…之）一 You useonein expressions such as 'one of the biggest airports' or 'one of the most experienced players' to indicate that something or someone is bigger or more experienced than most other things or people of the same kind.Subaru is one of the smallest Japanese car makers.斯巴鲁是日本最小的汽车制造商之一。
12DET（过去或将来的）某一（时刻） You can useonewhen referring to a time in the past or in the future. For example, if you say that you did somethingone day, you mean that you did it on a day in the past.How would you like to have dinner one night, just you and me?...哪天晚上一起吃饭怎么样？就咱俩。
13PRON（指代问题、笑话、评论、讨论的主题等）一个 You can useoneto refer to a question, joke, remark, or subject of discussion.This is a tricky one to answer...这是个难以回答的问题。
14PRON(一杯)酒 You can useoneto refer to an alcoholic drink.Other members of the committee drifted in for a quick one before closing time.委员会的其他成员陆续走了进来，想要趁关门前喝上一杯。
15PRON（泛指包括自己的人，可作句子的主语或宾语）一个人，任何人 You useoneto make statements about people in general which also apply to themselves.Onecan be used as the subject or object of a sentence.If one looks at the longer run, a lot of positive things are happening...如果把目光放长远些，就会发现很多积极的事情正在发生。
Usage Note:Oneoryouis used when making statements that are true of any individual person.Oneis more formal thanyou.I suppose one can't blame him... A crisis can make you stop and take a look at your life.Peopleis used to talk about everyone in general, or about a particular group....the amount of bread people buy... Don't go on about it. People may get embarrassed.表达某些情况适用于任何一个人时，用 one 或 you，但 one 比 you 更正式，如：I supposed one can't blame him（我想人们无法责怪他），A crisis can make you stop and take a look at your life（一场危机能使你停下来，反思自己的人生）。people 用于泛指每个人或某一群人，如：the amount of bread people buy (人们购买面包的量)，Don't go on about it. People may get embarrassed (别没完没了地讲这件事，大家会很尴尬的)。
16PHRASE一起；一致地 If a group of people does somethingas one, all the people do the same thing at the same time or in the same way.The 40,000 crowd rose as one.40,000人全体起立。
17PHRASE喜欢（或赞成、乐于）…的人 If you say that someone isone foror isa one forsomething, you mean that they like or approve of it or enjoy doing it.I'm not one for political discussions...我不是个热衷于谈论政治的人。
18PHRASE（强调某人与众不同的反应或行为方式）举个例说 You can usefor oneto emphasize that a particular person is definitely reacting or behaving in a particular way, even if other people are not.I, for one, hope you don't get the job.就我而言，我并不希望你得到那份工作。
19PHRASE（表示强调）很多 You can use expressions such asa hundred and one,a thousand and one, anda million and oneto emphasize that you are talking about a large number of things or people.There are a hundred and one ways in which you can raise money.筹钱的办法有很多。
20PHRASE集（若干部分或功能）为一体 You can usein oneto indicate that something is a single unit, but is made up of several different parts or has several different functions....a love story and an adventure all in one...集爱情和冒险于一体的故事
21PHRASE三三两两地；零零落落地 You can usein ones and twosto indicate that people do things or something happens gradually and in small groups.They lose interest and start drifting away in ones and twos.他们没了兴趣，开始三三两两地走开了。
22PHRASE一个接一个地；接连地；陆续地 You useone after the otherorone after anotherto say that actions or events happen with very little time between them.My three guitars broke one after the other...我的3把吉他陆续都坏了。
23PHRASE（用于节目中介绍演员、歌手或其他名人）绝无仅有的，独一无二的 The one and onlycan be used in front of the name of an actor, singer, or other famous person when they are being introduced on a show....one of the greatest ever rock performers, the one and only Tina Turner.史上最伟大的摇滚乐手之一，举世无双的蒂娜·特纳
24PHRASE逐个地；依次地 You can useone by oneto indicate that people do things or that things happen in sequence, not all at the same time.We went into the room one by one...我们挨个儿走进房间。
25PHRASE（一组事物或人之中的）或者这个或者那个，有一个 You useone or otherto refer to one or more things or people in a group, when it does not matter which particular one or ones are thought of or chosen.One or other of the two women was wrong.这两个女人当中有一个人错了。
26PHRASE一两个；几个 One or twomeans a few.We may make one or two changes...我们可以作一两处改动。
27PHRASE不大可能（做…)的人 If you say that someone isnot one todo something, you think that it is very unlikely that they would do it because it is not their normal behaviour.I'm not one to waste time on just anyone.我可不是个随便浪费时间在任何人身上的人。
28PHRASE略胜…一筹；占…的上风 If you try to getone up onsomeone, you try to gain an advantage over them....the competitive kind who will see this as the opportunity to be one up on you.具有竞争意识、将此视作占据上风的契机的那种人
29one and all→see:all
语法说明
one
One / ones is used to avoid repeating a countable noun, but there are some times when you should not use it, especially in formal speech or writing. one/ones用以避免重复
可数名词，但有时候，尤其在正式谈话或
书面语中，不应使用：
1 After a possessive ( my ,
your , Mary’s , etc.), some , any , both or a number,
unless it is used with an adjective. 在表示所有关系的词（如my、your、Mary's 等）、some、any、both或数字之后不用one/ones，除非与形容词连用：
‘Did you get any postcards?’ ‘Yes, I bought four nice ones.’
“你买
明信片了吗？”“买了，我买了四张很精美的。”
I bought four ones.
2 It can be left out after superlatives, this ,
that , these ,
those ,
either , neither , another , which , etc. 在形容词最高级、this、that、these、those、either、neither、another、which
等词后可省略one/ones：
‘Here are the designs. Which (one) do you prefer?’ ‘I think that (one) looks the most original.’
“图样在这里 。你喜欢哪（一）张？”“我认为那张看上去最有创意。”
3 These ones and those ones are not used in NAmE , and are unusual in BrE .
北美英语不用these ones和those ones，
英国英语也很少用：
Do you prefer these designs or those?
你喜欢这些图样还是那些？
4 It is never used to replace uncountable nouns and is unusual with abstract countable nouns. one/ones不用以取代
不可数名词，与抽象可数名词连用也很少见：
The Scottish legal system is not the same as the English system
is better than
…as the English one.
用The Scottish legal system is not the same as the English system（
苏格兰法制与
英格兰法制不同）胜于... as the English one。
词组短语
one of其中之一，之一
one day（将来）有一天；总有一天；（过去）某一天
in oneadv. 成为一体；[口]只试一次
双语例句原声例句权威例句
The electrical fan is new, but it
doesn't work well.(指同一台风扇)
This electrical fan doesn't work well. I'll try a new one.(不是同一台风扇)
这台电风扇运转不好，我要换一台新的。
对等词
拉丁语
unus
汉语
一
一介
乙
你
单
壹
房
有
通